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284,347-acre lake near Slave Lake. The lake tops out around 69 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. What follows comes from the same scoring engine that paints the spots above.
Lesser Slave Lake maps at 284,347 acres behind 165.5 miles of shoreline. The 2.2 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. The shallow band under 15 ft claims about 17% of the surface — that's where the groceries are. End to end it runs roughly 53.8 mi, about 16.4 mi across. It sits in Division No. 17. Nipisi Lake sits 30 mi northeast — the closest neighbouring chart.
Spring puts walleye in skinny water — 4 to 15 ft is the zone. Warm water sends them out to 15 to 35 ft; cold water stacks them in 20 to 40 ft. Creek inflow is the standout, an inflow / creek mouth at roughly 5 ft, rated prime for spring walleye. Plan around the evening and early morning in the warm months. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Creek inflow (5 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Deep break (36 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Deep break (36 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Deep break (36 ft) | Jigging spoon + minnow head, Rattle bait |
Come spring, look for northern pike tight to the bank in 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. If you only fish one area, make it Creek inflow: an inflow / creek mouth around 5 ft that scores prime in spring. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Creek inflow (5 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Feeding flat (11 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (5 ft) | Tip-ups, Large jigging spoon |
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. Warm water sends them out to 10 to 30 ft; cold water stacks them in 15 to 35 ft. Top water on the chart: Shallow bay flat, a feeding flat in the 5 ft range, prime in spring. Fish it in early morning and you'll meet the bite. Throw a drop-shot micro plastics or a small spoon tipped with worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (5 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (6 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep break (36 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep break (36 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The spring pattern is a shallow one: lake whitefish in 15 to 45 ft. As the season builds they drop to 21 to 69 ft, wintering in 21 to 69 ft. Top water on the chart: Deep basin, a deep basin in the 69 ft range, prime in summer. Time it for early morning. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Deep break (36 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 21 to 69 ft | dawn | Deep basin (69 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (9 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 21 to 69 ft | midday & dawn | Deep basin (69 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Come spring, look for burbot tight to the bank in 21 to 69 ft. Through summer count on 21 to 69 ft; the winter hold is 15 to 60 ft. Start at Deep basin. It's a deep basin holding about 69 ft of water and rates prime come spring. Prime time lands in after dark and midday. A heavy jig + cut bait is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 21 to 69 ft | night & dusk | Deep basin (69 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 21 to 69 ft | night & midday | Deep basin (69 ft) | Heavy jig + cut bait |
| Fall | 21 to 69 ft | night & dusk | Deep basin (69 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Rock reef (9 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Structure-wise the chart holds 56 features, led in depth by Deep basin at roughly 69 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Alberta waters are set by the Alberta fishing regulations — and special regulations can apply to Lesser Slave Lake specifically, so confirm the current rules before you fish.
Check the official Alberta fishing regulations →
Lesser Slave Lake is about 69 ft (21 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target walleye, northern pike, yellow perch, lake whitefish, burbot on Lesser Slave Lake.
Creek inflow is the top-rated area: an inflow / creek mouth in about 5 ft of water that rates prime for walleye in spring. The interactive chart above rates every spot for each species and season.
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Lesser Slave Lake is regulated by the Alberta fishing regulations. Check the official Alberta regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Nipisi Lake 30 mi · Utikuma Lake 31 mi · Mitsue Lake 34 mi · Chrystina Lake 44 mi · South Heart Reservoir 48 mi · Freeman Lake 50 mi · Snipe Lake 57 mi · Fawcett Lake 59 mi · Lawrence Lake 74 mi · Goose Lake 77 mi · McLeod Lake 78 mi · Ghost Lake 80 mi
See how Lesser Slave Lake stacks up: best walleye lakes in Alberta · best northern pike lakes in Alberta · best yellow perch lakes in Alberta · best lake whitefish lakes in Alberta
More water nearby: Division No. 17 fishing maps (11 charts). Browse all Alberta fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.